LVL beam tuab npaum li cas?

2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17

Feem ntau tuab ntawm LVL yog 45 mm (1-3/4 in), los ntawm qhov dav kab teeb tuaj yeem tsim tau yooj yim los ntawm fastening ntau yam LVL plies ua ke ntawm qhov chaw. LVL kuj tuaj yeem tsim nyob rau hauv tuab los ntawm 19 mm (3/4 nyob rau hauv) mus rau 178 mm (7 nyob rau hauv).

Ua raws li qhov kev pom no, LVL beam muaj zog npaum li cas?

LVL yog feem ntau ntsuas los ntawm cov chaw tsim tshuaj paus rau elastic modulus thiab tso cai bending kev nyuaj siab. Common elastic moduli yog 12 GPa (1, 700, 000 psi); 13 GPa (1, 900, 000 psi); thiab 14 GPa (2, 000, 000 psi); thiab feem ntau tso cai khoov qhov kev ntxhov siab yog 19 MPa (2, 800 psi); thiab 21 MPa (3,000 psi).

Tom qab ntawd, lo lus nug yog, koj tuaj yeem ncav cuag 2x12 LVL nyob deb li cas? Thaum txhawb joists tias ncua 12 ko taw uas tsis muaj overhang dhau ntawm kab teeb, ob chav ply beam tau span hauv taw tus nqi sib npaug rau nws qhov tob hauv ntiv tes. Ib ob 2 x12 nqaj tau span 12 ko taw; ib (2) x 10 tau span 10 feet thiab lwm yam.

Ua raws li qhov no hauv kev txiav txim siab, qhov loj npaum li cas ntawm LVL nqaj kuv xav tau?

Tsim ib nqaj qhov tob raws li txoj cai ntawm tus ntiv tes xoo rau kwv yees qhov tob ntawm kev tsim khoom kab teeb uas yog faib lub span los ntawm 20. Beam Qhov tob yog feem ntau 5 1/2 ntiv tes, 7 1/4 ntiv tes, 9 1/4 ntiv tes, 11 1/4 ntiv tes, 11 7/8 ntiv tes, 14 ntiv tes, 16 ntiv tes, 18 ntiv tes, thiab 20 ntiv tes.

LVL loj npaum li cas Kuv yuav tsum tau ncua 20 ko taw?

Re: 20 ko taw clearspan beam qhov loj Hauv qhov no, koj xav tau ib yam dab tsi zoo li 12-16 "GLULAM los yog LVL rau ncua tus 20 ' thiab siv tau yooj yim 2x8-10 qhov ntev lumber 16 "OC li hauv pem teb joists.